ball turret
now historical
noun
An aircraft machine-gun turret consisting of a rounded, rotatable compartment projecting below (and sometimes retractable into) the fuselage.
Origin
1940s; earliest use found in Piqua (Ohio) Daily Call.
- falling sickness
- falling star
- fall in (or into) line
- fall in (or out of) love (with someone)
- fall into place
- fall into step
- fall in with
- fall line
- fall-off
- fall off the back of a lorry
- fall on deaf ears
- fall on one's sword
- fall on (or upon)
- fall on stony ground
- fallopian tube
- fall (or drop) into someone's lap
- fall (or drop, or sink, etc.) to one's knees
- fall (or get) into the wrong hands
- fall out
- fallout
- fallout shelter
- fall over oneself to do something
- fallow
- fallow deer
- fallowness